Table 2.

Previously used Rome III Diagnostic Criteria for Irritable Bowel Syndrome [6].

Recurrent abdominal pain or discomfort (defined as an uncomfortable sensation not described as pain) for at least 3 days/month in the last 3 months, associated with two or more of the following:
1. Improvement with defecation
2. Onset associated with a change in the frequency of stool
3. Onset associated with a change in the form (appearance) of stool

These criteria should be fulfilled for the last 3 months with symptom onset at least 6 months prior to diagnosis.